class_docstr: Class for computing metrics based on two StructuredDatasets.
docstr: Difference of the averages.
docstr_tok: ["Difference","of","the","averages","."]
code: def mean_manhattan_distance_difference(self, privileged=None):
      """Difference of the averages."""
      return self.difference(
          self.average(self.manhattan_distance, privileged=privileged)
      )
  
imports: from functools import partial
  import numpy
  import scipy.spatial.distance
  from aif360.datasets import StructuredDataset
  from aif360.metrics import DatasetMetric, utils
label_desc: Use image node_id 18 for calling the SampleDistortionMetric obj's underlying member method code with example usage: obj.mean_manhattan_distance_difference(privileged) and returns: self